Analysis of the efficacy values in water polo goalkeepers

Abstract

The present study aims to analyze the efficacy values of goalkeepers in the Water polo World Championships held in Melbourne in 2007. In order to determine any differences between winner and loser, winners, losers and between genres, were filmed and analyzed, using the Software Pole Direct Analysis v1.0, all the 96 match celebrated. Various coefficients of effectiveness were measured in situations of equality, inequality, transition and penalties. A comparison of U Mann-Whitney was performed, and we found differences between the coefficients of resolution and imprecision in a situation of equality according to sex (U = .02; p < .05, U = .03; p < .05) and results (U = .0; p < .05, U = .0; p < .05), although there were no differences between winners, or among losers. In conclusion, it is considered that the coefficients of imprecision in transition and penalty give an idea of the sport situation to analyze and train to increase the sport performance, although still more research is necessary.